John h



(No Model.)

J'. H. LAWLESS.

PLUMBPRS POPUP PUMP.

Peten'eed Peb. 15,1887,

[NVE/WUR ATTORNEYS' N PETERS. PxwwLnhewphcr. wnshinglnn. D. C.

UNITED STATES PATENT OFFICE.

JOHN H. LAYVLESS, OF JERSEY CITY, NEV JERSEY.

PLUM slr-.wsl FORCE-suivi P.

SPECIFICATION forming part of Letters Patent No. 357,717, dated February 15, 1857.

Application filed December 4, [886. Serial No. 220,662. (No model.)

To all whom, it may concern:

Be it known that I, JOHN H. LAWLEss, of Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Plumbers Force- Pumps, of which the following is a specification.

This invention has reference to an improved plumbers forcepump by which sediments and obstructions located in the servieepipes that connect the main with the faucets in buildings can be quickly and effectively removed, so as to obviate the necessity of digging up the street and cutting the service-pipe for removing the obstruction; and the invention consists of a force-pump which is located in a reservoir of sufficient size and connected by a foot with a stand-pi pe, said foot and standpipe having each avalve, so as to establish communication, respectively, with the reservoir and pump-cylinder and reservoir and standpipe. The stand-pipe is connected by a coupling at its upper end and a lead-pipe with the service-pipe to be cleared of sediments or obstructions, and by a faucet and rubber tube witha sink or basin to discharge the muddy water in the service-pipe, as will appear more fully hereinafter, and finally be pointed out in the claims.

In the accompanying drawings` Figure l represents a vertical central section of my iinproved plumbers force-pump; and Fig. 2 is a horizontal section of the same on line x x, Fig. l.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents a cylindrical reservoir of suitable size. to the top part of which is rigidly attached a standard, A, to which the lever B for operating the pump is pivoted. In thelower part of the reservoir A is located a force-pump, C, the piston C of which is connected by a rod, O2, to theleverB. The piston O is packed with cup-leathers, as shownin Fig.l,and connected rigidly to theend of the piston-rod G2, the leather packing giving77 sufficiently to compensate for the slight oscillations of the piston-rod. The lower end of the pump-cylinder C connects by a lateral channel, a, with the foot D of a stand-pipe,

D, which latter extends through the reservoir to the top or cover of the same, where it is rigidly held in position by being screwed into the base of the standard A. The foot D extends laterally from the lower part of the pumpvcylinder, and is preferably made integral therewith, said foot beingprovided at the lower part with an opening, e, and valve e, so as to establish communication between the reservoir and pump-cylinder, as shown in Fig. l. A second Valve, d, is arranged at the lower end of the stand-pipe,above the valve e, and serves to establish communication between the pump cylinder C and the standpipe D. Vhen the forcepump O is worked, water is drawn into the pump-cylinder by the upward motion of the piston throughthe valve e, while the valve d is closed by the pressure ofthe water in the main. When the piston is moved downward, the valve e is closed and the valve d lifted, so that the water in the pump-cylinder is forced against the pressure of the water in the main into the stand-pipe D. The stand-pipe Dis connected by an opening,f, at its upper end, and couplingf with a pipe, f2, and a lead-pipe, E, which latter is applied to the faucet of the service-pipe that is to be cleaned from sediment or obstructions. The stand-pipe D is further connected by an opening, g, and faucet g with a rubber tube, g, which latter is inserted into the upper end of the reservoir when it is to be filled preparatory to using the pump, or into a basin or sink when it is desired to produce the discharge of the sediment or obstruction from the service- 1 e. p Iilly improved force-pump for plumbers is operated in the following manner: The pipe f2 at the upper end of the standpipe is first connected by the lead-pipe E and wipe-joints with the faucet of the service-pipe, which faucet is then opened, so that the entire standpipe is filled with water having the same pressure as the water in the main. The faucet g' is then connected by the rubber tube g2 (indicated in dotted lines in Fig. l) with the upper end of the reservoir, and the same filled with water from the stand-pipe D. Vhen the reservoir A is full, the stop-cock g lis closed and an up-and-down stroke imparted to the IOO piston C by the lever "B, whereby a column of water is rst drawn into the lower part of the pump-cylinder and then forced from the pumpcylinder through the stand-pipe D into the service-pipe. This column of water, moving in a direction opposite to that of the Water passing through the service-pipe, loosens the sediment or obstruction in the same, so that at the next upstroke of the piston the Water in the main carries the loosened sediment or obstruction with it. The next downstroke loosens another quantity of sediment and obstruction in the service-pipe, so as to cause them to float to and fro in the service-pipe with the water in the same, which is moved in one and then in the opposite direction bythe downstrokes of the piston and the return-mo tion of the water by the pressure of the main. After a few strokes of the piston have been given at short intervals7 the rubber hose g2 is connected with a sink or basin and the stopcock g opened,.so that the muddy water containing the sediments and obstructions is discharged into the sink or basin. In this manner any obstructed service-pipes of a building may be quickly and effectively' cleaned of sediments and obstructions, and thereby the digging up of the street and the cutting of the pipes ior repairs obviated.

My improved pump forms thus a convenient device for plumbers7 use, as it enables them to clean service pipes and remove obstructions which could heretofore not be reached except i at great expense.

Having thus described my inventiornlclaim as new and desire to secure 'by Letters Patent l. The combination of a reservoir, a forcepump in said reservoir, a stand-pipe located in said reservoir and connected to the pump, valves for establishing communication between the pump-cylinder and reservoir and `pump-cylinder and stand-pipe,respectively, a -pipe and coupling at the upper end of the stand-pipe for connecting the upper end of the stand-pipe with the service-pipe, and a discharge-faucet also at the upper end of the stand-pipe, substantially as set forth.

2. The combination of a reservoir, a forcepump in sa-id reservoir having a laterallyextending foot, a stand-pipe at the lower end of the reservoir, said force-pump being supported in the foot of the stand-pipe, valves located, respectively, at the lower ends of the stand-pipe and foot7 a pipe for connecting the upper end of the stand-pipe, respectively with the service-pipe to be cleaned, and a 'faucet at the upper end of the stand-pipe for discharging the muddy water in the service-pipe, substantially as set forth.

In testimony that Iv claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

JOHN H. LAWLESS.

llVitnesses:v

PAUL GQEPEL, MARTIN PETRY. 

